Mechanical elements for land vehicles, namely, suspension systems, brake pads and compressor wheels as parts of the turbo chargers for land vehicles; drive shafts for land vehicles; axles for land vehicles; spindles for land vehicles; bearings for land vehicles; shaft couplings for land vehicles; aircraft and their parts and fittings, namely, suspension struts, wheels, aerodynamic wings, fuselages, fuel tanks and propellers; railway rolling stock and their parts and fittings; automobiles and their parts and fittings; frames for bicycles, cycles; front forks for bicycles, cycles; bicycles, cycles and their parts and fittings